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    • Yazen Ghannam's avatar
      EDAC, mce_amd: Print IPID and Syndrome on a separate line · 2ee4d596
      Yazen Ghannam authored
      
      [ Upstream commit 75bf2f64 ]
      
      Currently, the IPID and Syndrome are printed on the same line as the
      Address. There are cases when we can have a valid Syndrome but not a
      valid Address.
      
      For example, the MCA_SYND register can be used to hold more detailed
      error info that the hardware folks can use. It's not just DRAM ECC
      syndromes. There are some error types that aren't related to memory that
      may have valid syndromes, like some errors related to links in the Data
      Fabric, etc.
      
      In these cases, the IPID and Syndrome are not printed at the same log
      level as the rest of the stanza, so users won't see them on the console.
      
      Console:
        [Hardware Error]: CPU:16 (17:1:0) MC22_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd82000000002080b
        [Hardware Error]: Power, Interrupts, etc. Extended Error Code: 2
      
      Dmesg:
        [Hardware Error]: CPU:16 (17:1:0) MC22_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd82000000002080b
        , Syndrome: 0x000000010b404000, IPID: 0x0001002e00000002
        [Hardware Error]: Power, Interrupts, etc. Extended Error Code: 2
      
      Print the IPID first and on a new line. The IPID should always be
      printed on SMCA systems. The Syndrome will then be printed with the IPID
      and at the same log level when valid:
      
        [Hardware Error]: CPU:16 (17:1:0) MC22_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd82000000002080b
        [Hardware Error]: IPID: 0x0001002e00000002, Syndrome: 0x000000010b404000
        [Hardware Error]: Power, Interrupts, etc. Extended Error Code: 2
      Signed-off-by: default avatarYazen Ghannam <Yazen.Ghannam@amd.com>
      Cc: linux-edac <linux-edac@vger.kernel.org>
      Link: http://lkml.kernel.org/r/1487192182-2474-1-git-send-email-Yazen.Ghannam@amd.comSigned-off-by: default avatarBorislav Petkov <bp@suse.de>
      Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      2ee4d596
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